NEC IE-784915-R-EM1 User manual

User’s Manual
Printed in Japan
©
1996
Document No. U10931EJ2V0UM00 (2nd edition)
Date Published October 1997 N
µ PD784915 Subseries
µ PD784928 Subseries
µ PD784928Y Subseries
IE-784915-R-EM1
I/O Emulation Board
EP-784915GF-R
Emulation Probe

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The information in this document is subject to change without notice.
No part of this document may be copied or reproduced in any form or by any means without the prior written
consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in
this document.
NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual
property rights of third parties by or arising from use of a device described herein or any other liability arising
from use of such device. No license, either express, implied or otherwise, is granted under any patents,
copyrights or other intellectual property rights of NEC Corporation or of others.
M7A 96.10
This product is designed to be used in a commercial or industrial district. If it is used in a residential district
or in an area in the vicinity of a residential district, radio and TV receivers in the district may be affected.
Use this product correctly by carefully reading its User’s Manual.

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Regional Information
Some information contained in this document may vary from country to country. Before using any NEC
product in your application, please contact the NEC office in your country to obtain a list of authorized
representatives and distributors. They will verify:
• Device availability
• Ordering information
• Product release schedule
• Availability of related technical literature
• Development environment specifications (for example, specifications for third-party tools and
components, host computers, power plugs, AC supply voltages, and so forth)
• Network requirements
In addition, trademarks, registered trademarks, export restrictions, and other legal issues may also vary
from country to country.
J96. 8

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MAJOR REVISIONS IN THIS EDITION
Page Contents
Throughout µ PD784928 subseries and µ PD784928Y subseries added to the target devices.
p.61 VOLUME 2 EP-784915GF-R
APPENDIX A EXTERNAL VIEW OF CONVERSION SOCKET
Drawing of the NQPACK100RB added.
The mark shows major revised points.

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PREFACE
Product outline The IE-784915-R-EM1 is connected to the IE-784000-R-EM, inserted in the IE-
784000-R,andusedtodebugthe µ PD784915subseries, µ PD784928subseries,and
µ PD784928Y subseries 16-bit single-chip microcontrollers.
The EP-784915GF-R is an emulation probe to connect the IE-784915-R-EM1 and
a target system. The EP-784915GF-R is used in combination with the EV-9200GF-
100 or NQPACK100RB.
Remark TheNQPACK100RB isa productof TokyoEletech Corp. (03-5295-1661).
When purchasing the product, consult your NEC distributor.
Intended Readership Thismanualisintendedforengineerswhousethe
µ PD784915subseries, µ PD784928
subseries, and
µ PD784928Y subseries 16-bit single-chip microcontrollers and
performsystemdebugging,usingtheIE-784000-RandIE-784000-R-EMincombination
with the IE-784915-R-EM1. It is also intended for engineers who upgrade a system
using other in-circuit emulators so that it has functions equivalent to those of the IE-
784000-R. Therefore, the engineers who read this manual are assumed to be
familiar with the functions and usage of the subseries used and have knowledge of
debuggers.
Purpose The purpose of this manual is to give readers an understanding of the method of
connecting the IE-784915-R-EM1 to the IE-784000-R and IE-784000-R-EM, the
setting method when debugging the
µ PD784915 subseries, µ PD784928 subseries,
and µ PD784928Ysubseries,andthemethodofconnectingtheEP-784915GF-Rwith
the IE-784915-R-EM1.
Organization This manual consists of the following two parts.
VOLUME 1: IE-784915-R-EM1 VOLUME 2: EP-784915GF-R
• System configuration • General description
• Function of external interface • Connection method
with IE-784000-R
Use the IE-784000-R manual as well.

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Using This Information VOLUME 1: IE-784915-R-EM1
To have a general understanding of the IE-784915-R-EM1 functions,
→read according to the TABLE OF CONTENTS.
To understand the basic specifications,
→read CHAPTER 1 GENERAL DESCRIPTION.
When looking up the setting method when the IE-784915-R-EM1 is connected with
the IE-784000-R to debug the
µ PD784915 subseries, µ PD784928 subseries, and
µ PD784928Y subseries,
→read CHAPTER 2 INSTALLATION PROCEDURE.
VOLUME 2: EP-784915GF-R
To have a general understanding of the EP-784915GF-R functions,
→read according to the TABLE OF CONTENTS.
To understand the operating environment and configuration,
→read CHAPTER 1 GENERAL DESCRIPTION.
To understand the specific connection method,
→read CHAPTER 2 CONNECTION.
Terminology
The meaning of each term used in this manual is described in the table below.
Term Meaning
Emulation device Generaltermofdevicesthatperformemulation
of target devices in the emulator
Includes the emulation CPU.
Emulation CPU CPUblockwhichexecutestheprogramcreated
by the user in the emulator
Target device Device that is an emulation target (real chip)
Target program Program that is a debugging target (program
created by the user)
Target system System that is a debugging target (system
created by the user).
Includesatargetprogramandhardwarecreated
by the user.
Refers to hardware only in a narrow sense.
Legend Note : Explanation of items marked with Note in the text
Caution: Item to be especially noted
Remark : Supplementary information

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TABLE OF CONTENTS
VOLUME 1 IE-784915-R-EM1
CHAPTER 1 GENERAL DESCRIPTION.............................................................................................. 13
1.1 Features .................................................................................................................................... 13
1.2 Product Configuration............................................................................................................. 13
1.3 Part Names ............................................................................................................................... 16
1.4 Target Device ........................................................................................................................... 17
1.5 Emulation Probe ...................................................................................................................... 17
1.6 Operating Precautions ............................................................................................................ 17
CHAPTER 2 INSTALLATION PROCEDURE ...................................................................................... 19
2.1 Connection with IE-784000-R..................................................................................................19
2.2 Connection with Target System ............................................................................................. 23
2.3 When Target System is not Connected ................................................................................. 23
CHAPTER 3 SETTING OF USER CLOCK .......................................................................................... 25
3.1 Setting of Operating Clock...................................................................................................... 25
3.2 Attaching Crystal Oscillator.................................................................................................... 26
CHAPTER 4 START-UP....................................................................................................................... 29
CHAPTER 5 DIFFERENCES FROM TARGET DEVICE...................................................................... 31
APPENDIX A PRODUCT SPECIFICATIONS ...................................................................................... 39

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VOLUME 2 EP-784915GF-R
CHAPTER 1 GENERAL DESCRIPTION.............................................................................................. 43
1.1 Operating Environment ........................................................................................................... 43
1.2 Configuration ........................................................................................................................... 43
CHAPTER 2 CONNECTION................................................................................................................. 49
2.1 Outline of Connection Procedure........................................................................................... 49
2.1.1 Connection of IE-784000-R-EM and IE-784915-R-EM1................................................................ 49
2.1.2 Connection of IE-784000-R and EP-784915GF-R......................................................................... 49
2.1.3 Connection of EP-784915GF-R and target system ....................................................................... 51
2.1.4 Connection of external sense clips ................................................................................................ 54
2.2 Powering-On/Powering-Off Order .......................................................................................... 56
2.3 Removing EP-784915GF-R from Target System ................................................................... 57
APPENDIX A EXTERNAL VIEW OF CONVERSION SOCKET .......................................................... 59
A.1 External View of EV-9200GF-100 and Recommended Board Mounting Pattern................ 59
A.2 External View of NQPACK100RB ........................................................................................... 61

VOLUME 1: IE-784915-R-EM1
I/O EMULATION BOARD
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CHAPTER 1 GENERAL DESCRIPTION
The IE-784915-R-EM1 is an I/O emulation board for the µ PD784915 subseries, µ PD784928 subseries, and
µ PD784928Y subseries 16-bit single-chip microcontrollers.
It can be made compatible with any product in the µ PD784915 subseries, µ PD784928 subseries, or µ PD784928Y
subseries just by changing the chip set board.
CombiningtheIE-784915-R-EM1andanemulationprobe(EP-784915GF-R)withtheIE-784000-RandIE-784000-
R-EM allows efficient debugging and operation verification of a system using the
µ PD784915 subseries, µ PD784928
subseries, and µ PD784928Y subseries.
1.1 Features
ThefeaturesofacombinedsystemoftheIE-784915-R-EM1withIE-784000-RandIE-784000-R-EMareasfollows.
• Allows emulation of the µ PD784915 subseries, µ PD784928 subseries, and µ PD784928Y subseries peripheral
functions (such as I/O port)
• Supply of CPU operating clock
• Combination with a separately available emulation probe (EP-784915GF-R) and connection of a chip set board
to the tip of the EP-784915GF-R allow debugging with characteristics similar to those of the real chip.
1.2 Product Configuration
The IE-784915-R-EM1 has the following product configuration. Check the items included.
• IE-784915-R-EM1 : 1
• Chip set board : 2
(For the
µ PD784915 subseries: 1, µ PD784928/784928Y subseries: 1)
• User’s Manual (this manual) : 1
Caution The chip set board is provided with a dedicated device (peripheral emulation device) to perform
emulation of peripheral functions (I/O port, etc.) of the target device.

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CHAPTER 1 GENERAL DESCRIPTION
Figure 1-1. List of IE-784915-R-EM1 Product Configuration (1/3)
(1) IE-784915-R-EM1
Front
Back

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CHAPTER 1 GENERAL DESCRIPTION
Figure 1-1. List of IE-784915-R-EM1 Product Configuration (2/3)
(2) Chip set board
The photos below show the chip set board of the
µ PD784915 subseries. It has the same appearance as that of
the
µ PD784928 and 784928Y subseries. Please use the µ PD784915 subseries as a reference.
Side to be connected to emulation probe
Side to be connected to dummy board

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CHAPTER 1 GENERAL DESCRIPTION
Figure 1-1. List of IE-784915-R-EM1 Product Configuration (3/3)
(3) User’s Manual (this manual)
1.3 Part Names
Table 1-1 shows names of connectors and other parts.
Table 1-1. IE-784915-R-EM1 Part Names
Name Function
CN1 Emulation probe (EP-784915GF-R) connector
CN2
PJ1 Emulation board (EP-784000-R-EM) connector
PJ2
TGCN1 Unused
TGCN2
L1 Chip set board Connector
L2
User’s Manual
Printed in Japan
©
1996
IE-784915-R-EM1
I/O Emulation Board
PD784915 Subseries
PD784928 Subseries
PD784928Y Subseries
µ
µ
µ
Emulation Probe
EP-784915GF-R

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CHAPTER 1 GENERAL DESCRIPTION
1.4 Target Device
The following products are the target devices that can be emulated by the IE-784000-R and IE-784000-R-EM in
combination with the IE-784915-R-EM1.
<
µ PD784915 subseries> < µ PD784928 subseries> < µ PD784928Y subseries>
• µ PD784915 • µ PD784927 • µ PD784927Y
• µ PD78P4916 • µ PD784928 • µ PD784928Y
•
µ PD78F4928 • µ PD78F4928Y
Remark The µ PD784928 subseries and 784928Y subseries are under development.
1.5 Emulation Probe
Use of the IE-784915-R-EM1 connected to the target system always requires an emulation probe. The emulation
probe is available separately.
Part Number Target Package
EP-784915GF-R 100-pin plastic QFP (14 ×20 mm)
Caution Two types of probe tip board (dummy board) are provided: LCC type and QFP type. See VOLUME
2 EP-784915GF-R for details.
1.6 Operating Precautions
(1) Be sure to turn off the power of the IE-784000-R and target system before connection of the IE-784915-R-
EM1 with the IE-784000-R and IE-784000-R-EM and its removal.
(2) When performing emulation of the target device by the IE-784915-R-EM1 in combination with the IE-784000-
R and IE-784000-R-EM, note that there are partial differences in pin characteristics from the real chip (see
CHAPTER 5 DIFFERENCES FROM TARGET DEVICE).
(3) Correctly attach the IE-784915-R-EM1 to the IE-784000-R-EM.
(4) Correctly attach the IE-784000-R-EM to the IE-784000-R main unit.
(5) Correctly connect the chip set board.
• When an emulation probe is used,
→connect the chip set board to the tip of the emulation probe.
• When an emulation probe is not used,
→connect the chip select board to connectors L1 and L2 of the IE-784915-R-EM1.
Caution Do not simultaneously connect the chip set board to both the tip of the emulation probe and the
IE-784915-R-EM1.

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CHAPTER 2 INSTALLATION PROCEDURE
2.1 Connection with IE-784000-R
Figure 2-1 shows an installation schematic of the IE-784000-R.
Figure 2-1. Installation Schematic of IE-784000-R
Emulation probe
Cover of IE-784000-R
IE-784000-R-EM
(available separately)
IE-784915-R-EM1
IE-784000-R main unit
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CHAPTER 2 INSTALLATION PROCEDURE
The IE-784915-R-EM1 is connected to the IE-784000-R and IE-784000-R-EM according the following procedure.
<1> Connection of chip set board
Caution When used with an emulation probe connected, do not connect the chip set board to the IE-
784915-R-EM1.
Connect the chip set board to L1 and L2 on the IE-784915-R-EM1.
Figure 2-2. Connection of Chip Set Board
<2> Setting of user clock
Perform the setting with reference to CHAPTER 3 SETTING OF USER CLOCK.
Chip set board
IE-784915-R-EM1
L2
L1